Carrying bracket for cup holder used in vehicles

Abstract

A carrying bracket for a cup holder used in vehicles is provided, including: a base unit, a rotating unit, and a plurality of expansion units; the outer wall of the base unit being disposed with a plurality of through holes; the rotating unit being mounted on the base unit and rotatable without detachment, the rotating unit having a spiral guide groove facing the base unit; the expansion units being installed in the base unit through the through holes at corresponding positions, and the expansion unit comprising a moving part and a wall support; the wall support for installing the moving part with adjustable position to change the length of the expansion unit; each moving part having a guide block and the plurality of guide blocks all located in the spiral guide groove. When the rotating unit rotates, each moving part moves linearly and protruding outward through the through hole.

What is claimed is: 
     
       1. A carrying bracket for a cup holder used in vehicles, comprising:
 a base unit having an outer wall disposed with a plurality of through holes; 
 a rotating unit mounted on the base unit, the rotating unit having a spiral guide groove facing the base unit and being rotatable without disengagement; and 
 a plurality of expansion units installed in the base unit through the plurality of through holes at corresponding positions, each of the expansion units comprising a moving part and a wall support for installing the moving part with an adjustable position, the moving part having a guide block located in the spiral guide groove and moving linearly and protruding outward through a corresponding through hole when the rotating unit rotates; 
 wherein a length of a respective expansion unit of the expansion units changes according to the adjustable position of the moving part of the respective expansion unit. 
 
     
     
       2. The carrying bracket for a cup holder used in vehicles according to  claim 1 , wherein the moving part of each of the expansion units has at least two sets of latch slots, each set of the latch slots is distributed on two corresponding vertical walls of the moving part, and the wall support of each of the expansion units also comprises a U-shaped sheath element, the sheath element has two convex strips respectively on two opposite inner walls, and the wall support is fixed to the moving part when the two convex strips are inserted into one set of the latch slots. 
     
     
       3. The carrying bracket for a cup holder used in vehicles according to  claim 2 , wherein each latch slot has at least one convex point, each convex strip also has at least one concave notch each corresponding to one of the at least one convex point, and when the convex strip is inserted into a corresponding latch slot, each of the at least one convex point is also located inside a corresponding one of the at least one concave notch. 
     
     
       4. The carrying bracket for a cup holder used in vehicles according to  claim 1 , wherein the base unit has a plurality of guide channels, each of the guide channels corresponds to one of the through holes, and when the rotating unit rotates, the moving part of each of the expansion units moves in a respective guide channel and extends through the through hole corresponding to the respective guide channel. 
     
     
       5. The carrying bracket for a cup holder used in vehicles according to  claim 1 , wherein a holder is installed in the base unit, the holder has a plurality of sliding grooves, the moving part of each of the expansion units also has a holding block, and the holding block protrudes from the bottom of the moving part and is located in the sliding grooves of the holder when assembled. 
     
     
       6. The carrying bracket for a cup holder used in vehicles according to  claim 1 , wherein the base unit has a receiving base with an opening facing upward, the bottom of the rotating unit has a round piece, the spiral guide groove is formed on an end surface of the round piece facing the base unit, and the round piece rotates in the receiving base. 
     
     
       7. The carrying bracket for a cup holder used in vehicles according to  claim 1 , wherein an anti-slip pad is disposed on an outer wall of the wall support of each of the expansion units. 
     
     
       8. The carrying bracket for a cup holder used in vehicles according to  claim 1 , wherein a screw rod is installed in a center of the base unit, and the screw rod penetrates the rotating unit and is locked to the base unit, so that the rotating unit is rotatable but not disengaged from the base unit. 
     
     
       9. The carrying bracket for a cup holder used in vehicles according to  claim 1 , wherein the outer wall of the top of the base unit further comprises a pivotal circular wall, and the pivotal circular wall comprises a plurality of longitudinal protruding teeth. 
     
     
       10. The carrying bracket for a cup holder used in vehicles according to  claim 9 , further comprising a rotating bracket, the rotating bracket having a C-shaped butt clamp, an inner wall of the butt clamp comprising a plurality of vertically distributed tooth grooves; when the rotating bracket is clamped by the butt clamp on the pivotal circular wall, the protruding teeth are located in the tooth grooves.